Skip to main content
SpringerLink
Log in

Development of Small Drop-Weight Testing Machine Based on Electromagnetic Induction

  • Research paper
  • Published:
Experimental Mechanics Aims and scope Submit manuscript

Abstract

Background

The impact strengths of solder joints between an electrical substrate and millimeter- or micrometer-sized electrical components such as resistors and capacitors must be determined when designing the electrical devices. Impact fracture of the device must be also considered due to mounting a lot of small electrical devices on an electrical board at high speed in production of many components.

Objective

A small drop-weight testing machine based on electromagnetic induction principle is developed using an impactor with a weight below 1 g to measure the impact load and specimen deformation.

Methods

Three impactors composed of an aluminum cylinder and a neodymium magnet were prepared to determine a suitable impactor for the drop-weight machine. The coils were placed near the specimen to measure the electromotive forces in accordance with the electromagnetic induction phenomena that occur during impactor collision with the specimen. The impact force and specimen deflection were analyzed from the electromotive forces.

Results

The machine was validated by coinciding the impulses of the impact loads with the momentum variations before and after the collisions of the drop weight. In the actual small drop-weight tests, measuring the impact load was clarified to be accurate by validating the absence of residual variations in the histories of impact load after the collision.

Conclusion

The small drop-weight testing machine and measurement system based on the electromagnetic induction phenomena were developed using impactors with a weight below 1 g to measure impact load and specimen deformation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16

Similar content being viewed by others

References

  1. JIS Z 0202 (2017) Method of drop test for packaged freights

  2. ASTM D5276 - 98 (2017) Standard test method for drop test of loaded containers by free fall

  3. ISO 8318 (2000) Packaging –Complete, filled transport packages and unit loads– Sinusoidal vibration tests using a variable frequency

  4. ISO 13355 (2016) Packaging –Complete, filled transport packages and unit loads– Vertical random vibration test

  5. ISO 148–1 (2016) Metallic materials –Charpy pendulum impact test– Part 1: Test method

  6. ISO 180 (2000) Plastics –Determination of Izod impact strength

  7. ISO 14556 (2015) Metallic materials –Charpy V-notch pendulum impact test– Instrumented test method

  8. Chen WW, Song B (2011) Split Hopkinson (Kolsky) Bar, Design, Testing and Applications. Springer, New York. https://doi.org/10.1007/978-1-4419-7982-7

  9. Kawata K, Chung H-L, Itabashi M (1994) Dynamic mechanical behavior of HTPB dummy composite propellant. Adv Compo Mater 3:163–175. https://doi.org/10.1163/156855194X00024

    Article  Google Scholar 

  10. Wong EH, Seah SKW, Shim VPM (2008) A review of board level solder joints for mobile applications. Microelectron Reliab 48:1747–1758. https://doi.org/10.1016/j.microrel.2008.08.006

    Article  Google Scholar 

  11. Date M, Shoji T, Fujiyoshi M, Sato K, Tu KN (2004) Ductile-to-brittle transition in Sn-Zn solder joints measured by impact test. Scripta Mater 51:641–645. https://doi.org/10.1016/j.scriptamat.2004.06.027

    Article  Google Scholar 

  12. Tsai KT, Liu FL, Wong EH, Rajoo R (2005) High strain rate testing of solder interconnections. 2005 Conference on High Density Microsystem Design and Packaging and Component Failure Analysis. https://doi.org/10.1109/HDP.2005.251396

  13. Liu JF, Shim VPW, Tan VBC, Cui FS (2015) A novel method for impact testing of small specimens –numerical simulation and experiments–. Exper Mech 55:1247–1259. https://doi.org/10.1007/s11340-015-0017-1

    Article  Google Scholar 

  14. Adachi T, Osada M, Watanabe K (2016) Measuring behavior of impactor penetrating through polymer sheet based on electromagnetic induction. Key Eng Mater 715:122-127. https://doi.org/10.4028/www.scientific.net/KEM.715.122

  15. Adachi T, Matsukawa N, Takamizo C, Ishii Y (2017) Measuring method of impact load in collision of small impactor based on electromagnetic induction. J Jpn Soc Exper Mech 17:231–236 (in Japanese). https://doi.org/10.11395/jjsem.17.231

  16. Adachi T, Matsukawa N, Takamizo C, Ishii Y (2018) New diagnostic method for evaluating penetration strength of rubber sheet by measuring electromagnetic induction. Int J Impact Eng 121:172–179. https://doi.org/10.1016/j.ijimpeng.2018.07.002

    Article  Google Scholar 

  17. Adachi T, Mochizuki Y, Ishii Y (2018) Measurement system of impact force and specimen deflection based on electromagnetic induction phenomena. In: Valerii P. Matveenko VP, Krammer M, Belyaev A, lrschik H (ed) Dynamics and Control of Advanced Structures and Machines, Springer, Cham, pp. 1–9. https://doi.org/10.1007/978-3-319-90884-7_1

  18. Ida N (2015) Engineering Electromagnetics, 3rd Ed., Springer, New York, pp.515–563. https://doi.org/10.1007/978-3-319-07806-9

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku, Toyohashi, 4418580, Japan

    T. Adachi

  2. NSK Ltd, Nissei Bldg, 1-6-3 Ohsaki, Shinagawa-Ku, Tokyo, 141-8560, Japan

    T. Ozawa

  3. Department of Aeronautics and Astronautics, Kyoto University, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto, 6158530, Japan

    Y. Ishii

Authors
  1. T. Adachi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. T. Ozawa
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Y. Ishii
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to T. Adachi.

Ethics declarations

Ethics of Approval

All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest or non-financial interest in the subject matter or materials discussed in this manuscript.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Adachi, T., Ozawa, T. & Ishii, Y. Development of Small Drop-Weight Testing Machine Based on Electromagnetic Induction. Exp Mech 61, 1333–1342 (2021). https://doi.org/10.1007/s11340-021-00750-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11340-021-00750-5

Keywords

Search

Navigation